Are those Christmas lights in Ontario? Nope it's a map of corn (red) vs soybean (grn) grown in 2013

The 2013 Agriculture Canada (AAFC) crop inventory map for S. Ontario now available.

Southwestern Ontario: Embedded image permalink

Citation: Annual Space-Based Crop Inventory for Canada, 2013, Earth Observation Service, Science and Technology Branch, Agriculture and Agri-Food Canada. For further details, contact: Andrew.Davidson@agr.gc.ca

Northern Ontario: Embedded image permalink

View on web

Comment

You need to be a member of Ontario Agriculture to add comments!

Join Ontario Agriculture

Comment by OntAG Admin on December 23, 2013 at 6:07am: Here is the image that Andrew Davidson mentions....much greater detail.

Comment by Andrew Davidson on December 22, 2013 at 3:04pm: Hello All: The space-based maps shows here are actually highly accurate (corn = 92%; soybean = 88%). The maps are validated using thousands of ground-based observations collected by our field crews. We are pretty confident that our output maps are of high quality.

So why does the first map not look "right"? It is not actually a problem with the data; rather, it is a by-product of the way that the map-making software renders images at such a broad geographic scale. If you were to zoom into the map to see greater detail, you would see highly detailed maps of field patterns (e.g. http://t.co/NJ7t7LnzZb). But, as you zoom out so that the map covers a greater area, our mapping software sub-samples the map for faster display. As a result, the output becomes overly generalized, and some finer-resolution detail is lost.

To illustrate this, compare the amount of red in the map I link to above to the amount of red in the more generalized map at the top of the page. They look very different, even though they are different "views" of the same map! The difference is due to the map generalization described above.

Feedback on these maps from farmers and producer groups are important to us. However, as I note above, a visual assessment based on the large-area map leads to misleading conclusions because of the rendering issue. But, once we have created versions of these maps that allow zooming -- e.g. in google earth format -- such an assessment would certainly be possible.

If you are interested in further evaluating our data, or for any further questions relating to these maps or what we do, feel free to email me (Andrew.Davidson@agr.gc.ca) or follow me on Twitter (@AndrewMDavidson).

Comment by OntAG Admin on December 21, 2013 at 5:10am: The images are interesting but the feedback from farmers is that the first one is not accurate.

It must be picking up forests and hay or something else...seems like too much green.

RSS

Welcome to
Ontario Agriculture

Sign Up
or Sign In

Agriculture Headlines from Farms.com Canada East News - click on title for full story

ABP Working Groups address key issues

From traceability to trade structure, coal mining to wildlife conflict, ABP has active working groups on four of the most important files facing Alberta beef producers. Here are updates from each of the groups: Traceability Following the direction of resolutions carried by delegates at the 2026 Annual General Meeting, ABP’s board is forming a dedicated Traceability Working Group. The working group will examine traceability closely, with the objective of providing producer-driven feedback and solutions that reflect on-the-ground realities across Alberta’s beef sector. Members of the working group are being finalized, and will include representatives from ABP’s executive, directors and delegates; partner cattle organizations; and groups such as the Government of Alberta. The working group will be supported by a dedicated facilitator to maintain clear timelines, while also ensuring issues are thoroughly examined. The goal is to develop realistic, workable recommendations to present t

What drives the true cost of forage production?

New COP Network benchmarks reveal what drives forage production costs in Canadian cow-calf operations, from hay and silage to greenfeed, and where producers can improve efficiency. Forage is the backbone of every cow-calf operation — but how much does it really cost to grow? While feed is often viewed as a “homegrown” input, the reality is that forage production can make or break cost competitiveness, especially as input costs continue to rise. Data from the Canadian Cow-calf Cost of Production Network show wide differences in the cost of producing forages such as hay, corn silage, corn for grazing, cereal silage, and greenfeed. But the real insight isn’t just what those costs are, it’s why they differ from farm to farm. Forage costs vary, management matters This analysis includes data from 59 COP Network benchmark farms from 2020 to 2024, covering five major forage types — hay, corn silage, corn for grazing, cereal silage, and greenfeed. Hay remains the dominant forage on Canadia

Multiple pickup trucks under recall

Like any piece of farm equipment, pickup trucks are subject to recalls

Most regions hit the home stretch of seeding

Provincial seeding progress is nearly complete as 93 per cent of seed has been put in the ground across Saskatchewan. The latest figure is up from 80 per cent the previous week, but is still behind the five and ten year average of 97 per cent. The west-central region leads the way at 98 per cent complete, the southwest at 97 per cent, the southeast 96 per cent, the northwest 95 per cent and the northeast entered the home stretch at 92 per cent complete. But farmers in the east-central region still have some work to do as progress currently sits at 84 per cent. While it's a large increase from 63 per cent the previous week, it remains behind the five year average of 93 per cent for the region. Crops Extension Specialist with the Ministry of Agriculture Samantha Marcino, who is based out of Yorkton, notes the Calder area had 164 millimetres of rain and the Canora area around 72 mm. "This did increase the topsoil moisture levels, obviously, in those regions, and some of them were sit

Horizon School Division, Nutrien bring hydroponic learning lab to Lanigan students

Students at Lanigan School will soon get their hands dirty while learning about food production and agriculture. Horizon School Division and Nutrien announced this week a partnership that will see the installation of a hydroponic grow container at the school. Director of Education for Horizon Kevin Garinger says they first saw the grow container in Alberta a few years ago, and the one to be established in Lanigan is the first of its kind within the School Division. "Food security is so vital, and I think one of the things that we are trying to do through this process is educate our children about the impact of the work our farmers, our communities, and our big businesses do in support of agriculture in our province and ultimately across our country and world." said Garinger, adding its opportunities like this that can inspire students to pursue a career in agriculture. "If we make that impact, if we make that kind of impact on the ag industry, on our children to understand that the

More…

Badges | Report an Issue | Terms of Service